This Guidance is aimed at those involved in the commissioning, design and management of evaluations of humanitarian assistance programmes principally within donor organisations but is also likely to be of use to UN agencies, NGOs and other organisations involved in the provision of humanitarian assistance. It is not intended as an exhaustive guide as specialised texts are available, but to complement the existing DAC Principles on Aid Evaluation by highlighting those areas which require special attention, the nature of the activities undertaken and the multi-actor, highly interconnected system by which the international community provides humanitarian assistance. The research for this publication was conducted by ODI and almost the identical text was published by ODI as (Hallam, 1998).